JP3825273B2 - Vehicle security system, vehicle and security center - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicle security system, a vehicle, and a security center, and more particularly to a vehicle security system, a vehicle, and a security center that use a personal authentication function for authenticating a driver.
[0002]
[Prior art]
Traditionally, as a technology to prevent vehicle theft,
(1) Use the key for the vehicle
(2) A lock mechanism for physically locking the vehicle handle is attached (see FIG. 10: handle lock mechanism).
(3) When an intruder breaks a window glass or opens a door, trunk, etc., using a vibration sensor, current sensor, voltage drop sensor, etc., a siren is sounded or an alarm lamp blinks (see Figure 11: Unauthorized) Access detection / alarm system),
(4) or inform the owner of the vehicle nearby by radio,
There was only anti-theft technology such as.
[0003]
In the above prior art (1), when a key is picked up, stolen or imitated, it is possible for a person other than the owner to move the vehicle. Even if there is no key, the vehicle can be easily started by directly connecting the key switch.
It is clear from the appearance that the prior art (2) has attached a lock mechanism for the purpose of psychological intimidation, and an intruder can destroy the lock mechanism to eliminate the effectiveness of the function. there were.
[0004]
The prior art (3) often malfunctions in response to natural wind, rain, ambient noise and vibration. In many cases, it could not be attached to foreign cars with unstable voltage changes when the door was opened. In addition, when a door or trunk is opened and a room lamp is lit, a slight change in current flowing through the vehicle body is detected, and depending on the vehicle model, it may not work properly.
Conventional technology (4) is limited in the effect when the distance between the vehicle and the owner or the security guard is close, such as a garage and home, a company parking lot and a security guard room, and the owner or guard is absent Had no effect.
[0005]
The prior arts (1) to (4) can be expected to be effective only at the initial stage of theft. In other words, if the dedicated key is stolen, the lock mechanism is destroyed, the power of various sensors is turned off, or the vehicle is carried by a separate large trailer with the anti-theft mechanism attached, It was absolutely powerless.
[0006]
On the other hand, technologies related to automobiles with personal authentication devices have also been proposed for the purpose of solving problems (prevention of key loss, theft, and forgetting to take keys) caused by the key being released from the car body ( For example, see JP-A-7-168930. By installing a personal authentication device on the device body side and authenticating a regular registrant, it can be made impossible to use other than a regular registrant registered in advance, and privacy and confidentiality protection can be achieved. It is supposed to be planned.
[0007]
[Problems to be solved by the invention]
It is conceivable to apply such a technique for preventing vehicle theft. That is, by authenticating a regular registrant, the use of a person other than the registrant can be prohibited.
However, by strictly prohibiting the use of people other than registrants using the above technology, such as when a person other than registrants is allowed to use the vehicle, Also, in order to deal with such exceptional cases, unauthorized use cannot be prevented if use with a conventional mechanical key is permitted. Therefore, the above technique has a problem in that it cannot grasp the use state of the vehicle and cannot take an appropriate measure.
The present invention has been made to solve such problems, and it is an object of the present invention to provide a vehicle security system, a vehicle, and a security center that can grasp the use state of the vehicle and can take necessary measures.
[0008]
[Means for Solving the Problems]
In order to achieve such an object, a vehicle security system according to the present invention authenticates and determines a user who uses a vehicle using biometric information, and grasps the use state of the vehicle based on the authentication determination result. In the system, based on the user's biometric information acquired from the user, authentication determination is made as to whether the user is a regular registrant registered in advance as a person who can use the vehicle, and the authentication determination result is transmitted. Electronic authentication key to be used and the authentication judgment result received from this electronic authentication key Perform processing based on And a security center that manages the use state of the vehicle via a communication network connected to the vehicle.
Then, when the vehicle is used in an unauthenticated state in which the user is not authorized as a regular registrant based on the authentication determination result in the vehicle control unit, an unauthenticated use indicating that fact is made via the communication network. To the security center, and if the security center can confirm that the registrant is aware of the use of the vehicle after notification of unauthorized use from the vehicle, it is determined that the vehicle is in normal use. When it is not possible to confirm that the registered person is aware of the use of the vehicle, it is determined that the vehicle is being used illegally.
[0009]
When confirming that a regular registrant is aware of the use of a vehicle, the Security Center knows the unauthorized use of a vehicle from a regular registrant within a certain period of time from the notification of unauthorized use by the vehicle. If there is a notification to that effect, it may be determined that the vehicle is being used normally.
In addition, if the Security Center cannot confirm that the regular registrant is aware of the use of the vehicle within a certain period of time from the notification of unauthenticated use from the vehicle, it will contact the registered registrant registered in advance. You may make it notify the unauthenticated use of the said vehicle previously.
[0010]
If the Security Center confirms that the registered user is aware of the use of the vehicle by notifying the use of the vehicle to the above contact information, it is determined that the vehicle is in normal use and the vehicle is being used. If it is not possible to confirm that the regular registrant knows about the vehicle, it may be determined that the vehicle is illegally used.
Further, when the security center fails to notify the contact information of the registered registrant who has been registered in advance that the vehicle has not been authenticated, it may be determined that the vehicle has been illegally used.
[0011]
When the user does not perform authentication determination with the electronic authentication key, if the vehicle is used without receiving the authentication determination result in the control unit of the vehicle, unauthenticated use indicating no authentication is indicated in the communication network. If there is no notification from the authorized registrant that he / she knows that the vehicle is unauthenticated within a certain period of time from the notification of unauthenticated use indicating no authentication, You may make it judge that the vehicle is used illegally.
[0012]
When multiple regular registrants share the same vehicle, the user is authenticated with multiple regular registrants using the electronic authentication key, and the user is confirmed to be one of the regular registrants Transmits ID information corresponding to the regular registrant as an authentication determination result indicating successful authentication, and the ID information from the electronic authentication key is registered in advance in the vehicle control unit by the IDs of a plurality of regular registrants. If they match the information, it may be determined that the user has been successfully authenticated.
[0013]
When limiting the number of times a vehicle can be used with a mechanical key, the vehicle control unit counts the number of times the vehicle is used in an unauthenticated state as the number of unauthenticated uses, and the number of unauthorized use exceeds the allowable number. The engine start of the vehicle in the unauthenticated state may be prohibited.
At this time, if the security center can confirm that the registrant is aware of the use of the vehicle after notification of the unauthorized use from the vehicle, the invalidation of the number of unauthorized use is counted against the vehicle. The control unit of the vehicle may invalidate the count of the number of unauthenticated uses corresponding to the unauthenticated use in response to a count invalidation instruction of the number of unauthenticated times from the security center.
[0014]
In addition, when limiting the number of times a vehicle is used with a mechanical key, the security center instructs the vehicle to initialize the number of unauthenticated uses in response to re-registration of biometric information by a regular registrant. The unit may initialize the number of times of unauthenticated use in response to an instruction to initialize the number of times of unauthenticated from the security center.
[0015]
When managing the location information indicating the location of the vehicle, the vehicle is provided with a location detection unit that detects the current location of the vehicle and outputs the location information, and the vehicle control unit uses the vehicle in an unauthenticated state. If confirmed, notification of location information obtained from the location detection unit may be started to the security center.
Furthermore, the location information from the vehicle may be received by the security center, and the location information of the vehicle may be notified when notifying the authorized registrant about the vehicle.
[0016]
When detecting the movement of the vehicle, the vehicle is provided with at least one of an engine rotation sensor for detecting the rotation of the engine and an acceleration sensor for detecting the movement of the vehicle. You may make it confirm use of a vehicle.
[0017]
When managing the vehicle usage history, the security center may record the vehicle usage history information indicating the notification from the vehicle and the response at the security center.
At this time, the control unit of the vehicle notifies the security center of the start and end of use of the vehicle and the authentication determination result from the electronic authentication key to the security center, and the security center uses the usage history information from the vehicle. May be recorded.
Further, the vehicle is further provided with a display device for displaying usage history information. When the authentication determination result indicates that the user has been successfully authenticated by the vehicle control unit, the vehicle usage history information is acquired from the security center. It may be displayed on a display device.
[0018]
Further, the vehicle according to the present invention determines whether or not the user is a regular registrant registered in advance as a person who can use the vehicle based on the user's biometric information acquired from the user. The electronic authentication key that sends the authentication judgment result and the authentication judgment result received from this electronic authentication key Perform processing based on And a security center that manages the use state of the vehicle via a communication network connected to the vehicle, and authenticates and determines the user who uses the vehicle using biometric information, The vehicle is used in a vehicle security system that grasps the use state of the vehicle based on the authentication determination result, and the vehicle is provided with a control unit.
Then, when the vehicle is used in an unauthenticated state in which the user is not authenticated as a regular registrant based on the authentication determination result, the unauthenticated use indicating that fact is made via the communication network. Notify the Security Center, and if the Security Center confirms that the registrant is aware of the use of the vehicle after notification of unauthorized use from the vehicle, let the vehicle determine that the vehicle is in normal use, In the case where it is not possible to confirm that the regular registrant is aware of the use of the vehicle, the vehicle is judged to be illegally used.
[0019]
In addition, the security center according to the present invention authenticates whether or not the user is a regular registrant who is registered in advance as a person who can use the vehicle based on the biometric information of the user acquired from the user. The electronic authentication key that transmits the authentication determination result and the authentication determination result received from this electronic authentication key Perform processing based on And a security center that manages the use state of the vehicle via a communication network connected to the vehicle, and authenticates and determines the user who uses the vehicle using biometric information, A security center used in a vehicle security system that grasps the use state of a vehicle based on an authentication determination result, and a management means is provided in the security center.
Then, when the vehicle is used in an unauthenticated state in which the user is not authorized as a regular registrant based on the result of the authentication determination, the management means notifies the user of the unauthorized use via the communication network. After the notification of unauthenticated use from the vehicle to be notified to the security center, if it can be confirmed that the registrant is aware of the use of the vehicle, it is determined that the vehicle is in normal use and the use of the vehicle If it is not possible to confirm that the authorized registrant is aware, the vehicle is judged to be illegally used.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram showing a vehicle security system according to an embodiment of the present invention.
The vehicle security system includes an electronic authentication key 1, a vehicle 2, a communication network 3, and a security center 5, and whether or not the vehicle 2 can be used is determined based on an authentication determination result with the electronic authentication key 1. In addition, the use state of the vehicle 2 is managed by the security center 5 via the communication network 3. Note that the regular registrant 4 and the security center 5 are connected via the communication network 3 as necessary.
[0021]
The electronic authentication key (key with identity authentication function) 1 is used to authenticate whether or not the user is authorized to use the vehicle 2 by using the fingerprint of the user who will use the vehicle 2 in the future. This is a key for a vehicle having a personal authentication function.
In the following, a case where a fingerprint is used as biometric information when performing personal authentication will be described as an example. The biometric information includes, in addition to this fingerprint, voice print, iris, handwriting, palm shape (finger joint length), vein pattern It is also possible to use a face arrangement pattern or the like.
[0022]
The electronic authentication key 1 includes a sensor 11 that acquires and outputs fingerprint data of a fingerprint from a user, and a memory that stores verification data used to verify a fingerprint of a regular registrant who is permitted to drive the vehicle. 12. The fingerprint data acquired by the sensor 11 and the verification data stored in the memory 12 are compared and verified to perform authentication determination of the authorized registrant, and the authentication determination result is successful (OK) / unsuccessful (NG ) And a transmission unit 14 for transmitting the authentication determination result from the authentication unit 13 to the vehicle 2.
[0023]
As a means for transmitting information from the electronic authentication key 1 to the vehicle 2, wireless data communication means using infrared rays or weak radio waves can be used. Further, pair information indicating a combination of the electronic authentication key 1 and the vehicle 2 is transmitted together with the authentication determination result from the authentication unit 13 so that the combination of the same kind of the electronic authentication key 1 and the vehicle 2 is identified. It may be.
In addition, when data communication is performed between the electronic authentication key 1 and the vehicle 2 or between the vehicle 2 and the security center 5, an encryption method may be applied to information to be exchanged. Can be improved.
[0024]
In the memory 12, authentication data of a plurality of regular registrants can be registered. In the transmission unit 14, if the authentication determination result in the authentication unit 13 indicates successful authentication, the ID for each registered regular registrant is registered. The ID information of the authorized registrant who has been successfully authenticated is selected from the information, and is transmitted to the vehicle 2 as the authentication determination result. Further, when the authentication determination result in the authentication unit 13 indicates unsuccessful, the authentication determination result indicating unsuccessful (NG) is transmitted to the vehicle 2.
The sensor 11, the memory 12, the authentication unit 13, and the transmission unit 14 are integrally formed in a one-chip authentication LSI 10 and operate by supplying power from the built-in battery 15. Further, a switch 16 for operating the electronic authentication key 1 is provided, and an operation output thereof is input to the authentication unit 13 to control the operation of the electronic authentication key 1.
[0025]
The vehicle 2 confirms that the user is an authorized registrant registered in advance based on the authentication determination result from the electronic authentication key 1, and determines that driving is possible according to the confirmation. Further, when the vehicle 2 is used in an unauthenticated state in which the authentication of the regular registrant has not been confirmed, the security center 5 is notified of the unauthenticated use.
The vehicle 2 includes a receiving unit 21 that receives an authentication determination result from the electronic authentication key 1, a control unit 22 that controls each unit of the vehicle 2, and a communication unit 23 that performs data communication with the security center 5 via the communication network 3. A memory for storing information necessary for control processing in the control unit 22, such as ID information of a registered user registered in advance and the number of times of unauthorized use indicating the number of times of use of the vehicle 2 by a mechanical key in an unauthenticated state Unit 24, key switch 25 for operating vehicle 2 with a mechanical key, engine rotation sensor 26 for detecting engine rotation, acceleration sensor 27 for detecting movement / running of vehicle 2, and detecting the current location of vehicle 2 A position detecting unit 28 is provided.
[0026]
In addition, various equipment such as a door 29A, a starter 29B for starting the engine, a trunk 29C, a display (display unit) 29D for use history information, and a bonnet 29E are connected to the control unit 22 as general equipment of the vehicle 2. Each piece of equipment is controlled by the control unit 22 based on the usage state of the vehicle 2, and unauthorized access to the equipment is detected by the control unit 22 as necessary.
The vehicle 2 referred to in the present invention includes general vehicles such as passenger cars, trucks, and motorcycles as well as special vehicles such as police cars, cash transport vehicles, and tanks, and can be applied to various vehicles.
[0027]
As a means for performing communication between the vehicle 2 and the security center 5, and further the regular registrant 4, a general wireless telephone network can be used. If PHS (Personal Handyphone System) is used as the wireless telephone network, location information indicating the current position of the vehicle 2 can be easily acquired.
As for the location information of the vehicle 2, the position detection unit 28 uses GPS (Global Positioning System) and various road traffic systems used in the car navigation system, such as ITS (Intelligent Transport System) and VICS (Vehicle Information and Communication System). You may make it acquire using.
[0028]
The security center 5 authenticates the person using the communication means 51 for communicating with the vehicle 2 via the communication network 3, ID information, password, confirmation information for confirming the identity of each authorized registrant of the vehicle 2, and the like. Registrant authentication means 52 for performing authentication, authentication information used for personal authentication in the registrant authentication means 52, and registrant information database (hereinafter referred to as registrant information DB) for storing management information necessary for providing security services. 53 is provided.
[0029]
The security center 5 also has, for each vehicle 2, a use start / end time of the vehicle notified from the vehicle, an authentication determination result, a report history to the security center 5, a re-registration history, an unauthenticated use history. A history information database (hereinafter referred to as history information DB) 54 that stores history information such as, and a location information database (hereinafter referred to as location information DB) 55 that stores location information indicating the location of the vehicle notified from the vehicle 2. And a management means 56 for managing the usage state of each vehicle 2 registered in advance and providing a security service.
[0030]
Next, the operation of the vehicle security system according to the present embodiment will be described with reference to the drawings.
In the present embodiment, the security center 5 uses the presence / absence and the contents of an unauthenticated notification notified from the vehicle 2 and the presence / absence of the unauthorized use of the vehicle by the authorized registrant after the unauthenticated notification. The use state of the vehicle 2, that is, normal use / unauthorized use is determined.
Hereinafter, cases A to F according to the actual use state of the vehicle 2 will be taken up, and the operation of the vehicle security system will be described for each case.
[0031]
[Case A: When a regular registrant receives authentication and uses the vehicle normally]
First, with reference to FIG. 2, the operation of the vehicle security system in the case where a regular registrant receives authentication and uses the vehicle normally (Case A) will be described.
FIG. 2 is a flowchart showing an operation example (cases A and B) of the vehicle security system. Case B will be described later.
[0032]
When the vehicle 2 is used, first, the user places his / her finger on the sensor 11 of the electronic authentication key 1 possessed and captures the fingerprint (step 101). The authentication unit 13 compares the fingerprint data acquired by the sensor 11 with verification data of a regular registrant registered in advance in the memory 12, thereby performing authentication determination as to whether or not the user is a regular registrant ( Step 102).
Here, when the fingerprint data matches the verification data and the personal authentication is obtained (step 102: OK), an authentication determination result indicating that the authentication is successful is notified to the transmission unit 14. In response to this, the transmission unit 14 transmits the ID information of the regular registrant registered in advance to the vehicle 2 (step 103).
[0033]
In the vehicle 2, the ID information from the electronic authentication key 1 is received by the receiving unit 21 (step 104), and the ID information is passed to the control unit 22.
Based on the ID information, the control unit 22 compares it with the ID information of the regular registrant registered in advance in the storage unit 24, and checks whether the received ID information belongs to the regular registrant (step 105).
[0034]
Here, when it is confirmed that the received ID information belongs to a regular registrant (step 105: YES), it is determined that the user is a regular registrant and can be used, and the door of the vehicle 2 29A is controlled to release the lock (step 106), and the starter 29B is controlled as necessary to start the engine (step 107).
Thereby, the vehicle 2 is normally used by a user, that is, a regular registrant. Thereafter, the engine of the vehicle 2 is turned off by the user in accordance with the end of use (step 108), the door 29A is locked (step 109), and a series of cases where the authorized registrant receives authentication and uses the vehicle normally. The operation ends.
[0035]
As described above, when the authentication determination result with the electronic authentication key 1 indicates that the authentication is successful, the control unit 22 of the vehicle 2 determines that the vehicle can be used by the user. It can be determined whether or not the vehicle can be used.
In the above, the case where the personal authentication is obtained, the case where the door lock is released and the engine start is automatically performed in steps 106 and 107 has been described. However, such automatic control is not performed and the personal authentication is performed. The user may be allowed to open the door and further start the engine within a predetermined grace period from when the above is obtained.
[0036]
In addition, when the personal authentication is successful with the electronic authentication key 1, the ID information of the regular registrant is transmitted, and the control unit 22 of the vehicle 2 confirms that the ID information belongs to the regular registrant. Therefore, even when the vehicle 2 is shared by a plurality of regular registrants, individual regular registrants can be identified, authenticated, and managed.
Therefore, as described later, even when history information is recorded in the security center 5, it is possible to grasp the usage situation for each regular registrant, such as which regular registrant used the vehicle, and detailed security management. Can be realized.
[0037]
[Case B: When a registered registrant reports unauthorized use of a vehicle]
Next, with reference to FIG. 2, the operation in the case where there is a report of unauthorized use of a vehicle from a regular registrant (Case B) will be described as the operation of the present embodiment.
When a legitimate registrant 4 senses that the vehicle 2 has been used illegally by unauthorized authentication by a third party (non-registrant) and notifies the security center 5 by telephone or the like (step 111) The management means 56 of the security center 5 accepts the notification (step 112), and confirms that the notification source is the regular registrant 4 with the registrant authentication means 52 with reference to the registrant information DB 53 (step 113). ).
[0038]
Here, when it is confirmed that the notification source is the regular registrant 4 (step 113: YES), the communication address of the vehicle 2 is acquired from the registrant information DB 53, and the vehicle 2 of the communication address is communicated with the communication means. The location information is requested from 51 via the communication network 3 (step 114). In addition, when the regular registrant 4 cannot be confirmed in the above step 113, the process regarding the unauthorized use notification may be stopped.
The control unit 22 of the vehicle 2 receives this location information request via the communication unit 23 (step 115), acquires location information indicating the current position of the vehicle 2 by the position detection unit 28, and communicates from the communication unit 23. The data is transmitted to the security center 5 via the network 3 (step 116).
[0039]
The management means 56 of the security center 5 receives the location information from the vehicle 2 by the communication means 51 (step 117), stores the location information in the location information DB 55, and stores the location information in the regular registrant 4 of the reporting source. Is notified from the communication means 51 via the telephone network 3 (step 118).
As a result, the regular registrant 4 confirms the location of the vehicle 2 (step 119), notifies the police station that the vehicle has been stolen (step 120), and the regular registrant reports that the vehicle is illegally used. A series of operation in the case of being completed is completed.
Note that the management means 56 of the security center 5 may also report the occurrence of vehicle theft as necessary (step 121).
[0040]
In this way, in response to a report from the regular registrant 4, the location is obtained from the vehicle 2 that has been illegally used and notified to the regular registrant 4, so that the regular registrant 4 can send it to the police station. Appropriate vehicle theft notification can be made.
Further, the location of the vehicle 2 that has been reported for unauthorized use may be acquired and reported directly from the security center 5 to the police station, so that the vehicle theft can be dealt with more quickly. Further, when the management means 56 of the security center 5 determines that the vehicle 2 is illegally used, it is selected and registered in advance according to the intention of the regular registrant whether to notify the legitimate registrant or the police station. You may make it set.
[0041]
[Case C: When a registrant uses a vehicle in an unauthenticated state]
Next, with reference to FIG. 3 and FIG. 4, the operation of the vehicle security system when the authorized user uses the vehicle in an unauthenticated state (Case C) will be described as the operation of the present embodiment.
3 and 4 are flowcharts showing other operation examples (cases C, D, E) of the vehicle security system. Cases D and E will be described later.
[0042]
When the authorized registrant uses the vehicle 2 in the unauthenticated state (Case C), the authorized registrant performs personal authentication with the electronic authentication key 1 but cannot obtain the authentication (Case C1). When the mechanical key is used directly without performing the personal authentication with the electronic authentication key 1 (case C2), and further, in step 105 of the case A described above (see FIG. 2), the ID information is properly registered by the vehicle 2 side. The case where it is not confirmed that the user belongs (case C3) is considered.
In case C1, the user places his / her finger on the sensor 11 of the electronic authentication key 1 possessed and captures the fingerprint (step 131). The authentication unit 13 compares and compares the fingerprint data acquired by the sensor 11 with the verification data of a regular registrant registered in advance in the memory 12 to authenticate the user whether or not the user is a regular registrant ( Step 132).
[0043]
Here, when the fingerprint data does not match the verification data and the personal authentication cannot be obtained (step 132: NG), the transmitting unit 14 is notified of the authentication failure as the authentication determination result. As a result, an authentication determination result indicating unsuccessful authentication is transmitted from the transmission unit 14 instead of the ID information.
Therefore, since it is not determined that the use is permitted by the control unit 22 of the vehicle 2, the user decides to use the mechanical key (step 133), and opens the door 29A of the vehicle 2 with the mechanical key (step 134). .
In case C2, the process starts from step 134 above. Further, in case C3, the routine proceeds from step 105 in FIG. 2 to step 133.
[0044]
When the mechanical key is inserted into the key switch 25 of the vehicle 2 and operated, the operation is notified to the control unit 22 of the vehicle 2. As a result, the control unit 22 determines that the user authentication is not confirmed based on the ID information from the electronic authentication key 1, and the machine in the unauthenticated state stored in the storage unit 24 is determined. The unauthenticated usage is added to the number of times the expression key is used, that is, the number of unauthenticated usage (added once), and then the value is checked (step 135).
Here, when the number of unauthenticated uses is equal to or less than the allowable number (for example, 3 times) (step 135: YES), the control unit 22 determines that the use of the vehicle 2 can be permitted, and controls the starter 29B to control the engine. Is started (step 138). Thereby, the driving | operation by a user is started.
[0045]
Thereafter, when the engine rotation is detected by the engine rotation sensor 26 or the movement of the vehicle 2 is detected by the acceleration sensor 27, the control unit 22 indicates that the vehicle 2 is being used in an unauthenticated state. In order to notify the security center 5 from the communication unit 23 via the communication network 3, and to the security center 5 about the location information of the vehicle 2 detected by the position detection unit 28 at predetermined intervals. Is automatically transmitted (step 139).
In response to this, the management means 56 of the security center 5 receives the unauthenticated use notification transmitted from the vehicle 2 via the communication means 51, and receives the location information automatically sent from the vehicle 2 and Update storage in the location information DB 55 is started (step 140), and it is waited for whether or not there is a confirmation notification of unauthorized use from a regular registrant of the vehicle within a predetermined time from this unauthorized use notification (step 142).
[0046]
On the other hand, the user (driver) who drives the vehicle 2 starts using the vehicle 2 with a mechanical key, and then regularly uses the vehicle 2 in an unauthenticated state to the security center 5 via the communication network 3. An unauthenticated use confirmation notification for notifying that the registrant is aware is made (step 141).
When the management unit 56 of the security center 5 detects an unauthenticated use confirmation notification from the user within a certain time from the unauthenticated use notification via the communication unit 51 (step 142: YES), the unauthenticated use A confirmation notification is accepted (step 143), and after the registrant authentication means 52 confirms that the user of the notification source is a regular registrant (step 147: YES), the communication means 51 via the communication network 3 is used. The vehicle 2 is instructed to invalidate the number of times of unauthorized use (step 148).
[0047]
The control unit 22 of the vehicle 2 accepts the count invalidation instruction for the number of unauthenticated usages via the communication unit 23 (step 149), and among the number of unauthenticated usages stored in the storage unit 24, Is invalidated (subtracted once) and updated and stored (step 150).
Thereby, the vehicle 2 is normally used by a user, that is, a regular registrant. Thereafter, the engine of the vehicle 2 is turned off by the user according to the end of use (step 151), the door 29A is locked (step 152), and a series of operations when the authorized registrant uses the vehicle in an unauthenticated state. Ends.
[0048]
In this way, even when a regular registrant uses a vehicle in an unauthenticated state, if it is confirmed that the regular registrant is aware of the unauthorized use of the vehicle 2 after that, it is determined as normal use. As a result, even if you are a regular registrant, you cannot be authenticated with the electronic authentication key 1, or even if a non-registrant uses it for a good reason It becomes possible to use the vehicle 2 on the condition.
Therefore, as compared with the conventional case where vehicle availability is simply determined according to the authentication result, it is possible to make a determination that matches the actual operation state and to realize smooth vehicle security management.
[0049]
In addition, after the notification of unauthorized use, if it can be confirmed that the authorized registrant is aware of unauthorized use, the number of unauthorized use managed by the vehicle 2 will be invalidated by that number. As a result, the number of unauthenticated uses is not counted any more, and the unauthorized use prevention of the vehicle 2 using the number of unauthenticated uses can be effectively functioned.
In addition, since at least one of the engine rotation sensor 26 and the acceleration sensor 27 is provided to detect the movement of the vehicle 2, the use of the vehicle 2 can be detected quickly, and a quick response can be taken for unauthorized use. .
[0050]
[Case D: When there is no unauthenticated use confirmation notice when using an unauthenticated vehicle]
Next, with reference to FIG. 3 and FIG. 4, the operation of the vehicle security system when there is no unauthenticated use confirmation notification due to vehicle use in an unauthenticated state (Case D) will be described as the operation of the present embodiment. To do.
When there is no unauthenticated use confirmation notification from the authorized registrant within a certain time from the unauthenticated use notification in step 142 (see FIG. 3) of case C described above (step 142: NO), the management means of the security center 5 In 56, referring to the registrant information DB 53, the contact information to the regular registrant of the vehicle 2 is acquired, and the vehicle 2 is used in an unauthenticated state from the communication means 51 to the regular registrant 4 via the communication network 3. This is reported (step 144).
[0051]
In response to this, the legitimate registrant 4 confirms the notification of unauthorized use from the security center 5 (step 145), and if the vehicle 2 accepts that the vehicle 2 is used with a mechanical key ( Step 146: YES), this is notified to the security center 5.
On the other hand, the management means 56 of the security center 5 confirms that the unauthenticated use state is accepted from the regular registrant 4 in step 143 as in the case (Case), and the registrant authentication means 52 in step 147. Thus, it is confirmed that the report destination in step 144 is a regular registrant. If it is confirmed that the user is a regular registrant (step 147: YES), the operation after step 148 is performed as in the case (case C).
[0052]
Further, when the regular registrant 4 does not know the unauthenticated use state of the vehicle 2 at step 146 (step 146: NO), and when it is not confirmed at step 147 that the regular registrant is a regular registrant (step 147). : NO), the management means 56 of the security center 5 acquires the location information of the vehicle 2 from the location information DB 55 and notifies the authorized registrant of the location of the vehicle 2 being used unauthenticated (step 153). ).
As a result, the regular registrant 4 confirms the location of the vehicle 2 (step 154), notifies the police station that the vehicle has been stolen (step 155), and the regular registrant reports that the vehicle is illegally used. A series of operation in the case of being completed is completed.
Note that the management means 56 of the security center 5 may also notify the occurrence of vehicle theft as necessary (step 156).
[0053]
As described above, when there is no unauthenticated use confirmation notification from the regular registrant within a certain time from the notification of unauthenticated use from the vehicle 2, the security center 5 gives the unauthorized registrant 4 unauthenticated use. Since the notification is made, if the registered person is not aware, the vehicle can be promptly dealt with, and a reliable service can be provided.
Furthermore, by this notification, when the regular registrant is aware of unauthenticated use, it was judged as normal use, so it was possible to respond to forgetting contact of the regular registrant, etc. Appropriate service can be provided.
[0054]
If the unauthorized registration cannot be notified from the security center 5 to the authorized registrant, it may be determined that the unauthorized use has occurred, and a vehicle theft can be quickly dealt with.
In addition, when the use in the unauthenticated state is confirmed, the vehicle 2 starts to automatically notify the security center 5 about the location information of the vehicle at predetermined intervals. The location of the vehicle used in the vehicle can be ascertained, and an appropriate response can be taken when unauthorized use is confirmed.
Furthermore, since the location of the vehicle 2 is also notified when the security center 5 notifies the regular registrant 4, the proper registrant 4 can take an appropriate action in the case of unauthorized use. it can.
[0055]
[Case E: Use of mechanical key exceeds the specified number of times]
Next, with reference to FIG. 3 and FIG. 4, the operation of the vehicle security system in the case where the use of the mechanical key exceeds the specified number of times (case E) will be described as the operation of the present embodiment.
If the number of unauthenticated uses exceeds the allowable number of times (for example, 3 times) in Step 135 (see FIG. 3) of Case C described above (Step 135: NO), the control unit 22 cannot permit the use of the vehicle 2 Judgment is made and driving of the starter 29B is prohibited (step 136). As a result, the engine cannot be started and cannot run.
[0056]
Therefore, in such a case, the regular registrant re-registers the fingerprint data with the security center 5 and exchanges the mechanical key of the vehicle 2 (step 137). Thereby, the vehicle 2 is in a state where it can be reused.
In response to this re-registration, the security center 5 instructs the vehicle to initialize (reset) the number of unauthenticated uses, and the controller 22 of the vehicle 2 initializes the number of unauthenticated uses in the storage unit 24. It may be.
[0057]
As described above, since the number of times of use of the mechanical key is limited by the number of times of unauthenticated use, it is possible to deal with exceptional cases such as a case where authentication by the electronic authentication key 1 is not obtained even though the user is a regular registrant. At the same time, it can cope with unauthorized use.
In addition, when the number of unauthenticated uses exceeds the allowable number, it can be used through re-registration of fingerprint data and change of the mechanical key, so that it is possible to cope with new unauthorized use.
[0058]
[Case F: Unauthorized use of a vehicle by a third party without authorization]
Next, with reference to FIG. 5, the operation of the vehicle security system when a third party illegally uses a vehicle in an unauthenticated state (Case F) will be described as an operation of the present embodiment.
FIG. 5 is a flowchart showing another operation example (case F) of the vehicle security system.
[0059]
When a third party tampers with the vehicle 2 without authenticating with the electronic authentication key 1 (step 161), the mechanical key is illegally used (step 162) and the door is illegally opened. When the door is opened (step 163) or when the door is opened illegally without using a mechanical key (step 163), the control unit 22 of the vehicle 2 detects them.
Then, since the authentication determination result from the electronic authentication key 1 has not arrived, it is determined to be used in an unauthenticated state without authentication, and is stored in the storage unit 24 in the same manner as in the above-described step 135 (see FIG. 3). The number of unauthenticated uses is counted and checked (step 164).
[0060]
Here, the control unit 22 determines that the use of the vehicle 2 using the mechanical key cannot be permitted when the number of unauthenticated uses exceeds the allowable number of times (for example, 3 times) (step 164: NO). The driving of 29B is prohibited (step 165). As a result, similarly to the case E (see FIG. 3), the engine is not started and cannot travel.
On the other hand, when the number of unauthenticated uses is equal to or less than the allowable number (step 164: YES), the engine is started by controlling the starter 29B in consideration of an emergency situation approved by a regular registrant (step 166). In addition, when a third party directly starts the engine by unauthorized modification, the process proceeds to step 166.
[0061]
When engine start is detected by the engine rotation sensor 26 or movement of the vehicle 2 is detected by the acceleration sensor 27, the control unit 22 notifies the security center 5 that the vehicle 2 is being used in an unauthenticated state. Therefore, the communication unit 23 notifies the security center 5 via the communication network 3 of unauthenticated use indicating no authentication. (Step 167)
Further, sequential transmission of the location information of the vehicle 2 detected by the position detector 28 is started to the security center 5 (step 167).
[0062]
In response to this, the management means 56 of the security center 5 accepts an unauthenticated use notification from the vehicle 2 via the communication means 51 and starts to receive location information from the vehicle 2 and store it in the location information DB 55. (Step 168).
Then, it waits for whether or not there is an unauthenticated use confirmation notification from a regular registrant of the vehicle within a certain time from the unauthenticated use notification (step 169).
[0063]
Here, when the management unit 56 of the security center 5 cannot detect the unauthenticated use confirmation notification from the user within a certain time from the unauthenticated use notification via the communication unit 51 (step 169: NO). Then, the location information of the vehicle 2 is acquired from the location information DB 55 (step 170), and the location of the vehicle 2 being used unauthenticated is notified to the authorized registrant (step 171).
Thereby, the regular registrant 4 confirms the current location of the vehicle 2 by the notification from the security center 5 (step 172), and notifies the police station that the vehicle theft has occurred (step 173). A series of operations when a third party illegally uses the vehicle in an unauthenticated state ends.
[0064]
In this case, since the vehicle 2 has notified the unauthorized use without authentication, the user does not have the authorized electronic authentication key 1 and the probability of unauthorized use is high. 4 may be notified by the management means 56 of the security center 5 of the occurrence of vehicle theft as necessary (step 174).
Further, when the engine is started in a state where the use of the mechanical key as well as the electronic authentication key 1 is not detected, or when the engine is started in a state where the door opening is not detected, the engine rotation is not detected. Even if the use is detected in a procedure different from normal use, such as when movement of a vehicle is detected in the state, the probability of unauthorized use is high. You may make it report generation | occurrence | production of vehicle theft from the center 5. FIG.
[0065]
In each of the above cases, when various notifications / notifications are made between the security center 5 and the regular registrant 4, the operator of the security center 5 can talk to the regular registrant 4 and exchange the contents thereof. Good.
In addition, the security center 5 is provided with a device for sending necessary information as a voice message (synthesized voice), and further a device for receiving a signal (for example, a push phone signal) from the authorized registrant 4, and various notifications at the security center 5 are provided. / The reception process may be automated. Further, when reporting from the security center 5 to the police station, the occurrence of the vehicle theft may be reported using a necessary message as a voice message.
[0066]
In each case described above, the management unit 56 of the security center 5 may manage the state of the vehicle 2 as a log. FIG. 6 shows a log file screen / print output example.
In the control unit 22 of the vehicle 2, the vehicle 2 detects the usage state in response to notifications from various equipments, and notifies the security center 5 of the usage time / end time as history information from the communication unit 23 via the communication network 3. To do. At this time, it may be notified whether the user has tried to authenticate with the electronic authentication key 1 according to whether or not the ID signal is received.
The management means 56 of the security center 5 acquires history information from the vehicle 2 via the communication means 51 and sequentially stores it in the history information DB 54. Further, exchanges with the regular registrant 4 are also stored in the history information DB 54 sequentially.
[0067]
By recording such usage history, in addition to the case of normal use, if the user is not authenticated as a legitimate registrant after trying to authenticate the person, the legitimate registrant skips the process of authenticating the person in case of emergency. When driving, if a person other than a regular registrant uses the vehicle in an unauthorized manner, the history information can be viewed by the management means 56. Further, history information may be transmitted from the security center 5 to the control unit 22 of the vehicle 2 so that it can be viewed on the display 29D, and further provided with a security level, among a plurality of regular registrants of the vehicle 2 You may restrict | limit so that only a person can browse.
As a result, the usage status of the vehicle, the usage status of the personal authentication function, and the like can be known at a glance, which contributes to early detection of unauthorized use and warning to a non-user of the personal authentication function.
[0068]
As a specific example of the log file in FIG. 6, in the case of normal use (case A: history 61, 64, 66, 68), the use start date and time, the use end date and time, and the registrant at that time are displayed. The registrant can identify who the registrant is based on the ID signal when authenticated by the key with fingerprint authentication function. In normal cases, normal use is almost the case, so it is possible not to display this case.
[0069]
If unauthenticated use is notified and confirmation is received later (Case C), personal authentication was attempted at the start of use. In some cases, the vehicle is used to drive the vehicle, and the person himself / herself is notified to the security center 5 (history 62).
In this case, since the person is rejected at the start of use, the registrant at the start of use is not known, and “-(NG)” is displayed on the display. In the center reception column, the time when the person contacts and the center is authenticated is displayed. At the end of use, if the driver opens the door using a key with identity authentication function (it is completed), the name of the registrant is displayed (history 62). If the user cannot be authenticated even though the finger is placed on the screen, “-(NG)” is displayed.
[0070]
In Case C, there is a case where there is no prior contact from the driver, and the regular registrant is contacted from the security center 5 and it is found who of the regular registrants is driving (history 65). Here, at the start of use, the personal authentication is not successful and “-(NG)” is displayed. At the end of use, the driver does not use personal authentication and “-” is displayed.
Similarly, at the start of use, a regular registrant will drive the vehicle without using a key with a personal authentication function for some reason (emergency, forgetfulness, or uglyness), and notify the security center 5 in advance. There is a case where it is not performed (history 63). At this time, the security center 5 contacts the regular registrant, confirms the regular registrant, and uses the personal authentication function to open the door when the use ends.
[0071]
If a non-registrant uses a key with a fingerprint authentication function obtained by some means, the user may be mistakenly authenticated as someone who is a regular registrant (Case B: History 67). In this case, the name of the misregistered authorized registrant is displayed, but the vehicle owner then reports to the security center 5 and informs the owner of the vehicle location information. At the stage where it is determined that the “other person is accepted”, “user 1” and “user 2” are marked with “★”.
A non-registrant may use a conventional mechanical key without using the identity authentication function (Case F: History 69). At this time, since the authentication with the electronic authentication key 1 is not performed, “−” is displayed in the user column. Naturally, since there is no communication from the driver to the security center 5, the security center 5 automatically notifies all authorized registrants of the “illegal use” warning and the location information of the vehicle.
[0072]
Next, a configuration example of the electronic authentication key 1 will be described with reference to FIG. FIG. 7 shows a configuration example of the electronic authentication key.
This electronic authentication key is composed of an insertion part 1B to be inserted into a key switch of a general mechanical key and a gripping part 1A provided at the rear end thereof. An authentication LSI 10 is provided for detecting and authenticating. As shown in FIG. 1, the authentication LSI 10 performs sensor authentication by comparing a sensor 11 for sensing a fingerprint, a memory 12 for storing verification data, and comparing the fingerprint data sensed by the sensor 11 with the verification data in the memory 12. The authentication unit 13 and the transmission unit 14 that transmits the ID information of the regular registrant to the vehicle 2 in response to successful authentication in the authentication unit 13 are formed in one chip.
[0073]
In addition, the grip portion 1A is provided with a lock button 16A and a release button 16B as a switch 16. When a user who touches the sensor 11 on the surface of the authentication LSI 10 is authenticated as a regular registrant, when the lock button 16A or the release button 16B is pressed, ID information unique to the regular registrant is transmitted from the transmission unit 14, The door 29A of the vehicle 2 opens and closes.
Infrared or weak wireless is used for transmitting the ID information. If these buttons are pressed when the user is not authenticated as a regular registrant, NG information may be transmitted instead of ID information.
[0074]
In this case, the door cannot be opened, and it must be opened with a mechanical key. If the authentication LSI 10 is used without placing a finger in an emergency, it can be determined that the vehicle does not receive ID information or NG information.
Of course, the insertion part IB may be an electronic lock type instead of a mechanical type, and it is needless to say that the insertion part 1B does not exist and may be a “keyless” type that transmits an opening signal by infrared rays or weak radio. .
[0075]
Next, a specific configuration example of the sensor 11 constituting the authentication LSI 10 will be described with reference to FIG. 8A and 8B are explanatory diagrams showing the sensor 11 constituting the authentication LSI 10, wherein FIG. 8A is a diagram showing a schematic cross section of the sensor, and FIG. 8B is a circuit diagram showing a specific configuration of the capacitance detection circuit.
The sensor 11 includes, for example, a plurality of 80 μm square sensor electrodes 315 and a grid-like ground electrode 316 on an interlayer insulating film 314 formed on a lower insulating film 312 on a semiconductor substrate 311 made of silicon, for example. The plurality of sensor electrodes 315 and the ground electrode 316 are arranged on the same plane defined by the surface of the interlayer insulating film 314.
[0076]
The sensor electrodes 315 are covered with a passivation film 317 formed on the interlayer insulating film 314, and a plurality of sensor electrodes 315 are provided at intervals of 150 μm, are made of Au, and have a thickness of about 1 μm. Since the thickness of the passivation film 317 is about 3 μm, the passivation film 317 is present on the sensor electrode 315 with about 2 (= 3-1) μm. The passivation film 317 is made of an insulator having a relative dielectric constant of about 4.0 such as polyimide.
A wiring 313 connected to the sensor electrode 315 through a through hole is formed on the lower insulating film 312, while a capacitance detection circuit 318 that detects a capacitance formed on the sensor electrode 315 is formed on the semiconductor substrate 311. Is forming. The capacitance detection circuit 318 is connected to the sensor electrode 315 by the wiring 313 described above. The capacitance detection circuit 318 is prepared for each sensor electrode 315 and detects a capacitance formed between the sensor electrode 315 and a part of the recognition target (finger).
[0077]
The output side of each capacitance detection circuit 318 is connected to the authentication unit 13, and fingerprint data obtained by converting the capacitance formed in each sensor electrode 315 into light and shade is output to the authentication unit 13.
Each capacitance detection circuit 318, authentication unit 13, and memory 12 is formed on a semiconductor substrate 311 below the sensor electrode 315, for example. As a result, the authentication LSI 10 can be made into one chip. As another example of such a one-chip implementation, there is one disclosed in, for example, Japanese Patent Laid-Open No. 2000-242771.
[0078]
Cf is a capacitance formed between the sensor electrode 315 and the finger skin 331. The sensor electrode 315 forming the capacitor Cf is connected to the drain terminal of the Nch MOS transistor Q3a, and the source terminal of the transistor Q3a is connected to the input side of the current source 332A of the current I.
A source terminal of an Nch MOS transistor (first element) Q2a is connected to a node N1a between the sensor electrode 315 and the transistor Q3a. The drain terminal of the transistor Q2a, the drain terminal of the PchMOS transistor (first switch means) Q1a, and the gate terminal of the NchMOS transistor Q4a having the drain terminal applied with the power supply voltage VDD and the source terminal connected to the ground via the resistor Ra Is connected. An inverter gate 333A is connected to the source terminal of the transistor Q4a.
[0079]
Signals PRE (bar) and RE are applied to the gate terminals of the transistors Q1a and Q3a, respectively. A bias voltage VG is applied from the constant voltage source to the gate terminal of the transistor Q2a. Here, when the threshold voltage between the gate and the source at which the transistor Q2a is turned off is Vth, the voltages VDD and VG are set so that VDD> VG-Vth.
The nodes N1a and N2a have parasitic capacitances Cp1a and Cp2a, respectively.
The current source 332A and the transistor Q3a constitute a signal generation circuit 332, and the transistor Q4a, the resistor Ra, and the inverter gate 333A constitute an output circuit 333.
[0080]
FIG. 9 is a timing chart for explaining the operation of the capacitance detection circuit 318. FIG. 9A shows the potential change of the signal PRE (bar) for controlling the transistor Q1a, and FIG. 9B shows the signal for controlling the transistor Q3a. The potential change of RE is shown, (c) shows the potential change of each of the nodes N1a and N2a.
Initially, a high level (VDD) signal PRE (bar) is applied to the gate terminal of the transistor Q1a, and a low level (GND) signal RE is applied to the gate terminal of the transistor Q3a. Therefore, at this time, the transistors Q1a and Q3a are not conducting.
[0081]
In this state, when the signal PRE (bar) changes from the High level to the Low level, the transistor Q1a becomes conductive. At this time, the transistor Q3a remains in a non-conductive state and the signal generation circuit 332 is in a stopped state, so that the potential of the node N2a is precharged to VDD.
Node N1a is charged until the gate-source voltage of transistor Q2a reaches threshold voltage Vth and transistor Q2a is turned off. As a result, the potential of the node N1a is precharged to VG-Vth.
[0082]
When the signal PRE (bar) changes to High level after the precharge is completed, the transistor Q1a is turned off. At the same time, when the signal RE changes to a high level, the transistor Q3a becomes conductive, and the signal generation circuit 332 changes to an operating state. Then, when the charge charged at the node N1a is extracted by the current source 332A and the potential of the node N1a is slightly lowered, the voltage between the gate and the source of the transistor Q2a becomes larger than the threshold voltage Vth, and the transistor Q2a is turned on. To change. As a result, the charge at the node N2a is also extracted, and the potential drop at the node N2a starts.
Assuming that the period during which the signal RE is at the high level is Δt, the potential drop ΔV at the node N1a after the lapse of Δt is VDD− (VG−Vth) + IΔt / (Cf + Cp1a). Here, the parasitic capacitance Cp2a is sufficiently smaller than the parasitic capacitance Cp1a.
[0083]
Since the current I, the period Δt, and the parasitic capacitances Cp1a and Cp2a of the current source 332A are constant, the potential decrease amount ΔV is a value of a capacitance generated between the sensor electrode 315 and the finger surface 331 to be recognized. Determined by Cf. Since the capacitance value Cf is determined by the distance between the sensor electrode 315 and the finger surface 331, the capacitance value Cf varies depending on the unevenness of the fingerprint. Therefore, the magnitude of the potential decrease amount ΔV changes to reflect the unevenness of the fingerprint. Since this potential decrease amount ΔV is supplied as an input signal to the output circuit 333, ΔV is input by the output circuit 333, and a signal reflecting the fingerprint irregularities is output.
The output signal of each capacitance detection circuit 318 is output to the authentication unit 13 as the above-described fingerprint image data. Then, the authentication unit 13 authenticates the user by comparing the fingerprint image data with the registered fingerprint image data stored in advance in the memory 12.
[0084]
In FIG. 1, the example in which the sensor 11, the authentication unit 13, the memory 12, and the transmission unit 14 in the electronic authentication key 1 are configured as one chip has been described. The authentication unit 13 may be connected via the bus, and the memory 12 and the transmission unit 14 may be connected to the authentication unit 13 via the bus. Alternatively, the sensor 11 and the authentication unit 13 may be integrated into one chip, and the memory 12 and the transmission unit 14 may be connected to the one-chip component via a bus.
[0085]
【The invention's effect】
As described above, the vehicle security system according to the present invention is whether or not the user is a regular registrant who can use the vehicle registered in advance based on the user's biometric information acquired from the user. An electronic authentication key that makes an authentication decision and sends the authentication decision result, and an authentication decision result received from this electronic authentication key Perform processing based on The vehicle security system includes a vehicle having a control unit for controlling the vehicle and a security center that manages the use state of the vehicle via a communication network connected to the vehicle.
Then, when the vehicle is used in an unauthenticated state in which the user is not authorized as a regular registrant based on the authentication determination result in the vehicle control unit, an unauthenticated use indicating that fact is made via the communication network. To the security center, and if the security center can confirm that the registrant is aware of the use of the vehicle after notification of unauthorized use from the vehicle, it is determined that the vehicle is in normal use. When it is not possible to confirm that the registered person is aware of the use of the vehicle, it is determined that the vehicle is being used illegally.
[0086]
Further, the vehicle according to the present invention determines whether or not the user is a regular registrant registered in advance as a person who can use the vehicle based on the user's biometric information acquired from the user. The electronic authentication key that sends the authentication judgment result and the authentication judgment result received from this electronic authentication key Perform processing based on And a security center that manages the use state of the vehicle via a communication network connected to the vehicle, and authenticates and determines the user who uses the vehicle using biometric information, The vehicle is used in a vehicle security system that grasps the use state of the vehicle based on the authentication determination result, and the vehicle is provided with a control unit.
Then, when the vehicle is used in an unauthenticated state in which the user is not authenticated as a regular registrant based on the authentication determination result, the unauthenticated use indicating that fact is made via the communication network. Notify the Security Center, and if the Security Center confirms that the registrant is aware of the use of the vehicle after notification of unauthorized use from the vehicle, let the vehicle determine that the vehicle is in normal use, In the case where it is not possible to confirm that the regular registrant is aware of the use of the vehicle, the vehicle is judged to be illegally used.
[0087]
In addition, the security center according to the present invention authenticates whether or not the user is a regular registrant who is registered in advance as a person who can use the vehicle based on the biometric information of the user acquired from the user. The electronic authentication key that transmits the authentication determination result and the authentication determination result received from this electronic authentication key Perform processing based on And a security center that manages the use state of the vehicle via a communication network connected to the vehicle, and authenticates and determines the user who uses the vehicle using biometric information, A security center used in a vehicle security system that grasps the use state of a vehicle based on an authentication determination result, and a management means is provided in the security center.
Then, when the vehicle is used in an unauthenticated state in which the user is not authorized as a regular registrant based on the result of the authentication determination, the management means notifies the user of the unauthorized use via the communication network. After the notification of unauthenticated use from the vehicle to be notified to the security center, if it can be confirmed that the registrant is aware of the use of the vehicle, it is determined that the vehicle is in normal use and the use of the vehicle If it is not possible to confirm that the authorized registrant is aware, the vehicle is judged to be illegally used.
[0088]
Therefore, as compared with the conventional case of simply determining whether or not the vehicle can be used based on the result of the personal authentication, when the electronic authentication key 1 has not been authenticated despite being a regular registrant, Even if it is used by a non-registrant for legitimate reasons, it is determined as normal use on the condition that it is known by a regular registrant, and if this condition is not obtained, it is determined as unauthorized use. Therefore, it is possible to make a judgment that matches the actual operation state, to realize smooth vehicle security management, and to provide a high-quality security service that can be relieved.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a vehicle security system according to an embodiment of the present invention.
FIG. 2 is a flowchart showing an operation (cases A and B) according to the present embodiment.
FIG. 3 is a flowchart showing another operation (cases C, D, E) according to the present embodiment.
FIG. 4 is a flowchart showing another operation (cases C, D, E) according to the present embodiment.
FIG. 5 is a flowchart showing another operation (case F) according to the present embodiment;
FIG. 6 is an output example of usage history information.
FIG. 7 is a configuration example of an electronic authentication key.
FIG. 8 is an explanatory diagram showing a configuration example of a sensor.
FIG. 9 is a timing chart showing the operation of the capacitance detection circuit.
FIG. 10 is an explanatory view showing a conventional vehicle antitheft technique (handle lock mechanism).
FIG. 11 is an explanatory diagram showing a conventional vehicle anti-theft technology (unauthorized access detection / warning system).
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Electronic authentication key, 10 ... Authentication LSI, 11 ... Sensor, 12 ... Memory, 13 ... Authentication part, 14 ... Transmission part, 15 ... Built-in battery, 16 ... Switch, 2 ... Vehicle, 21 ... Reception part, 22 ... Control 23: Communication unit, 24: Storage unit, 25 ... Key switch, 26 ... Engine rotation sensor, 27 ... Acceleration sensor, 28 ... Position detection unit, 29A ... Door, 29B ... Starter, 29C ... Trunk, 29D ... Display, 29E ... bonnet, 3 ... communication network, 4 ... registrant registrant, 5 ... security center, 51 ... communication means, 52 ... registrant authentication means, 53 ... registrant information DB, 54 ... history information DB, 55 ... location information DB 56: Management means.

Claims (18)

In a vehicle security system that authenticates and determines a user who uses a vehicle using biometric information, and grasps the use state of the vehicle based on the authentication determination result,
An electronic device that determines whether or not the user is a regular registrant registered in advance as a person who can use the vehicle based on the user's biometric information acquired from the user, and transmits the authentication determination result. An authentication key,
A vehicle having a control unit that executes processing based on the authentication determination result received from the electronic authentication key;
A security center that manages the use state of the vehicle via a communication network connected to the vehicle;
When the vehicle is used in an unauthenticated state in which the user is not authenticated as the regular registrant based on the authentication determination result, the vehicle control unit performs unauthenticated use indicating the fact to the communication Notify the security center via the network,
The security center determines that the vehicle is in normal use when it can be confirmed that the regular registrant is aware of the use of the vehicle after notification of unauthenticated use from the vehicle, A vehicle security system, characterized in that if it is not possible to confirm that the regular registrant is aware of the use of a vehicle, the vehicle is determined to be illegally used. The vehicle security system according to claim 1,
When the security center receives a notification from the authorized registrant that the vehicle is unauthenticated within a certain period of time from the notification of unauthorized use of the vehicle, the vehicle is normally used. Vehicle security system characterized by determining that The vehicle security system according to claim 2,
If the regular registrant is not aware of the use of the vehicle within a certain time from the notification of unauthenticated use from the vehicle, the security center may register the regular registration registered in advance. A vehicle security system that notifies the person's contact information of unauthorized use of the vehicle. In the vehicle security system according to claim 3,
The security center determines that the vehicle is in normal use when it is confirmed that the authorized registrant is aware of the use of the vehicle by notification of unauthorized use to the contact. The vehicle security system is characterized in that if it is not possible to confirm that the regular registrant is aware of the use of the vehicle, the vehicle is illegally used. In the vehicle security system according to claim 3 or 4,
The vehicle security system, wherein the security center determines that the vehicle is illegally used when the vehicle cannot be notified of the unauthorized use of the vehicle to a registered registrant contact address registered in advance. . In the vehicle security system according to claims 1 to 5,
When the vehicle is used in a state where the authentication determination result has not been received, the control unit of the vehicle notifies the security center of unauthenticated use indicating no authentication, via the communication network,
If the security center does not receive a notice from the authorized user that the unauthorized use of the vehicle is acknowledged within a certain period of time from the notification of the unauthorized use indicating that there is no authentication, the vehicle is illegally used. It is judged that it is carried out, The vehicle security system characterized by the above-mentioned. In the vehicle security system according to claims 1 to 6,
The electronic authentication key performs authentication determination with the plurality of regular registrants for the user, and confirms that the user is one of the regular registrants as an authentication determination result indicating successful authentication. Send ID information corresponding to the regular registrant,
The control unit of the vehicle determines that the user has been successfully authenticated when the ID information from the electronic authentication key matches the ID information of a plurality of regular registrants registered in advance. Vehicle security system. In the vehicle security system according to claim 1,
The control unit of the vehicle counts the number of times the vehicle is used in the unauthenticated state as the number of unauthenticated uses, and if the number of unauthenticated uses exceeds an allowable number, the engine of the vehicle in the unauthenticated state Vehicle security system characterized by prohibiting starting. The vehicle security system according to claim 8,
When the security center can confirm that the authorized user is aware of the use of the vehicle after notification of the unauthorized use from the vehicle, the security center counts the number of unauthorized use of the vehicle. Instructing invalidity,
The vehicle control system, wherein the control unit of the vehicle invalidates the count of the number of unauthenticated uses for the unauthenticated use in response to an instruction to invalidate the count of unauthenticated times from the security center. The vehicle security system according to claim 8 or 9,
In response to re-registration of biometric information by the regular registrant, the security center instructs the vehicle to initialize the number of unauthorized use,
The vehicle control system, wherein the control unit of the vehicle initializes the number of times of unauthenticated use in response to an instruction to initialize the number of times of unauthenticated from the security center. In the vehicle security system according to claim 1,
The vehicle has a location detector that detects the current location of the vehicle and outputs location information thereof.
The vehicle control unit starts the notification of the location information obtained from the location detection unit to the security center when the use of the vehicle is confirmed in the unauthenticated state. system. The vehicle security system according to claim 11,
The security center receives location information from the vehicle, and also notifies location information of the vehicle when notifying the regular registrant about the vehicle. In the vehicle security system according to claims 1 to 12,
The vehicle has at least one of an engine rotation sensor that detects rotation of the engine and an acceleration sensor that detects movement of the vehicle,
The vehicle control system, wherein the control unit of the vehicle confirms use of the vehicle by the sensor. The vehicle security system according to claim 1,
The vehicle security system, wherein the security center records notification from the vehicle and usage history information of the vehicle indicating correspondence at the security center. The vehicle security system according to claim 14,
The control unit of the vehicle notifies the security center of the start and end of use of the vehicle and the authentication determination result from the electronic authentication key as a use status,
The vehicle security system, wherein the security center records a usage status from the vehicle as the usage history information. The vehicle security system according to claim 14 or 15,
The vehicle further includes a display device that displays the usage history information,
The vehicle control unit obtains use history information of the vehicle from the security center and displays it on the display device when the authentication determination result indicates a successful authentication of the user. Security system. Electronic authentication that determines whether or not the user is a regular registrant registered in advance as a person who can use the vehicle based on the user's biometric information acquired from the user and transmits the authentication determination result A vehicle having a key, a control unit that executes processing based on an authentication determination result received from the electronic authentication key, and a security center that manages a use state of the vehicle via a communication network connected to the vehicle. It is a vehicle used in a vehicle security system that is configured and authenticates a user who uses a vehicle using biometric information, and grasps the use state of the vehicle based on the authentication determination result,
When the vehicle is used in an unauthenticated state in which the user is not authenticated as the regular registrant based on the authentication determination result, unauthenticated use indicating the fact is sent via the communication network to the security center. The vehicle is in normal use when the security center is able to confirm that the authorized registrant is aware of the use of the vehicle after notification of unauthorized use from the vehicle. A vehicle comprising: a control unit that makes a determination and determines that the vehicle is illegally used when the regular registrant is not aware of the use of the vehicle. Electronic authentication that determines whether or not the user is a regular registrant registered in advance as a person who can use the vehicle based on the user's biometric information acquired from the user and transmits the authentication determination result A vehicle having a key, a control unit that executes processing based on an authentication determination result received from the electronic authentication key, and a security center that manages a use state of the vehicle via a communication network connected to the vehicle. A security center that is configured and used in a vehicle security system that authenticates and determines a user who uses a vehicle using biometric information and grasps the use state of the vehicle based on the authentication determination result,
When the vehicle is used in an unauthenticated state in which the user is not authenticated as the regular registrant based on the authentication determination result, unauthenticated use indicating the fact is sent via the communication network to the security center. After the notification of unauthenticated use from the vehicle to be notified to the vehicle, if it is confirmed that the regular registrant is aware of the use of the vehicle, it is determined that the vehicle is normally used, and the vehicle A security center, comprising: a management unit that determines that the vehicle is illegally used when it cannot be confirmed that the regular registrant is aware of the use of the vehicle.

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